/*******************************************************************************
 * Copyright (c) 2011, Daniel Murphy All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met: * Redistributions of source code must retain the
 * above copyright notice, this list of conditions and the following disclaimer. * Redistributions
 * in binary form must reproduce the above copyright notice, this list of conditions and the
 * following disclaimer in the documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/
/**
 * Created at 8:12:11 AM Jan 18, 2011
 */
package org.jbox2d.testbed.perf;


/**
 * @author Daniel Murphy
 */
public abstract class PerfTest {

  private final int numTests, iters;
  private final long[] times;

  public PerfTest(int argNumTests, int argIters) {
    numTests = argNumTests;
    iters = argIters;
    times = new long[numTests];
    for (int i = 0; i < numTests; i++) {
      times[i] = 0;
    }
  }

  public double getTestTime(int testNum) {
    return times[testNum] * 1.0 / 1000000;
  }

  public void go() {
    long prev, after;
    for (int i = 0; i < iters; i++) {
      System.out.println(i * 100.0 / iters + "%");
      for (int test = 0; test < numTests; test++) {
        prev = System.nanoTime();
        runTest(test);
        after = System.nanoTime();
        times[test] += after - prev;
      }
    }
    for (int test = 0; test < numTests; test++) {
      times[test] /= iters;
    }
    printResults();
  }

  public void printResults() {
    System.out.printf("%-20s%20s%20s\n", "Test Name", "Milliseconds Avg", "FPS (optional)");

    for (int i = 0; i < numTests; i++) {
      double milliseconds = times[i] * 1.0 / 1000000;
      if (getFrames(i) != 0) {
        double fps = getFrames(i) * 1000d / milliseconds;
        System.out.printf("%-20s%20.4f%20.4f\n", getTestName(i), milliseconds, fps);
      } else {
        System.out.printf("%-20s%20.4f\n", getTestName(i), milliseconds);
      }
    }
  }

  public abstract void runTest(int argNum);

  public abstract String getTestName(int argNum);

  public int getFrames(int testNum) {
    return 0;
  }
}
